TL*THE CONTACT OWNS A 2006 TOYOTA PRIUS. WHEN THE CONTACT FIRST DROVE THE VEHICLE, HE NOTICED SMOKE EMITTING FROM THE DASHBOARD AREA. THE VEHICLE WAS TAKEN TO THE DEALER WHERE THEY ADVISED HIM THAT THERE WAS NOTHING WRONG WITH THE VEHICLE AND NO REPAIRS WERE MADE. ON APPROXIMATELY TWELVE OCCASIONS AFTERWARD, WHILE UTILIZING THE CRUISE CONTROL MECHANISM, THE VEHICLE WOULD ABNORMALLY ACCELERATE WITHOUT WARNING. THE ACCELERATION WOULD USUALLY OCCUR ON A SMALL DECLINE OR INCLINE. THE VEHICLE WOULD DOWNSHIFT ON ITS OWN AND ACCELERATE UP TO 80 OR 90 MPH. HE HAD TO COMPLETELY DISENGAGE THE CRUISE CONTROL TO PREVENT THE VEHICLE FROM ACCELERATING. HE DID NOT CONTACT THE DEALER OR MANUFACTURER IN REGARDS TO THE VEHICLE ACCELERATING. DURING INCLEMENT WEATHER, HE ATTEMPTED TO PASS ANOTHER VEHICLE AT SPEEDS OF APPROXIMATELY 40 MPH. AS THE VEHICLE GLIDED OVER WET SNOW AND ICE, THE VEHICLE SLID SIDEWAYS AND CRASHED INTO A NEARBY GUARDRAIL. THE VEHICLE WAS DESTROYED. THERE WERE NO INJURIES; HOWEVER, A POLICE REPORT WAS FILED. THE CURRENT MILEAGE WAS APPROXIMATELY 60,000 AND THE FAILURE MILEAGE WAS 600.